An embodiment of the present invention relates to a system. The system includes a first vehicle, a second vehicle, and an interface between the first vehicle and the second vehicle. The interface is configured to enable the transfer of mechanical power from the second vehicle to the first vehicle when the first vehicle and the second vehicle are stationary.

An embodiment of the present invention relates to a vehicle. The vehicle includes an energy storage device and a traction motor electrically connected to the energy storage device. The traction motor is configured to convert electrical energy supplied by the energy storage device into a mechanical output to propel the vehicle. The vehicle also includes a vehicle connecting mechanism electrically coupled to the energy storage device and being configured for electrical coupling with a second vehicle connecting mechanism of a second vehicle to establish an electrical interface between the vehicle and the second vehicle. The electrical interface enables the transfer of electric power between the vehicle and the second vehicle.

An embodiment of the present invention relates to a vehicle. The vehicle includes an energy storage device and a traction motor electrically connected to the energy storage device. The traction motor is configured to convert electrical energy supplied by the energy storage device into a mechanical output to propel the vehicle. The vehicle also includes a vehicle connecting mechanism electrically coupled to the energy storage device and being configured for electrical coupling with a second vehicle connecting mechanism of a second vehicle to establish an electrical interface between the vehicle and the second vehicle. The electrical interface enables the transfer of electric power between the vehicle and the second vehicle.

A system for managing an underground mining machine is disclosed. The system may include a reel-in switch located in an operator station configured to generate plurality of reel-in signals, and a reel-out switch located in the operator station configured to generate a reel-out signal. The system may additionally include an electronic controller in electrical communication with the reel-in switch and the reel-out switch. The electronic controller may be configured to receive the plurality of reel-in signals from the reel-in switch and enter into two or more reeling-in modes in response to the plurality of reel-in signals.

Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95 and 135 relative to the maingate.

Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95 and 135 relative to the maingate.

An all-electric powered mobile jumbo drill machine configured to use provided AC electric power and on board battery provided electric power and operated in a mining environment.

Provided are a method and apparatus for remote coal mine leakage test. The remote leakage test method comprising: installing and connecting a leakage test device (3) at the a control switch (2) located at the most distal end of a coal mine power line (5); a leakage detection and protection device (1) connecting the leakage test device (3) via the coal mine power line (5) and providing it with a detection circuit for detecting whether remote leakage has occurred; generating a grounding current flowing through the coal mine power line (5) by controlling the grounding of the leakage test device (3); the leakage detection and protection device (1) detecting the grounding current, and enabling a leakage protection relay (KA) to operate, so as to cut off the coal mine power line (5); and detecting the coal mine power line (5) or manually observing an indication lamp (HL), so as to determine whether the remote leakage test is successful. The coal mine remote leakage test device and method are safe, convenient and time-saving.

A method and a system for relocating a modular trolley system for a mining truck in a mine are provided. The modular trolley system includes a rectifier substation and a wire-pole-assembly. At least parts of the rectifier substation and the wire-pole-assembly include a transport coupling section for coupling the trolley system element to a transport coupling tool and for transporting the trolley system element. The method includes disconnecting at least some of the transportable trolley system elements at a first location of the mine, and coupling the respective trolley system elements to the transport coupling tool via the transport coupling section. The method additionally includes transporting the trolley system elements to a second location different from the first location. The method further includes re-connecting the transported trolley system elements of the modular trolley system at the second location of the mine.

A method and a system for relocating a modular trolley system for a mining truck in a mine are provided. The modular trolley system includes a rectifier substation and a wire-pole-assembly. At least parts of the rectifier substation and the wire-pole-assembly include a transport coupling section for coupling the trolley system element to a transport coupling tool and for transporting the trolley system element. The method includes disconnecting at least some of the transportable trolley system elements at a first location of the mine, and coupling the respective trolley system elements to the transport coupling tool via the transport coupling section. The method additionally includes transporting the trolley system elements to a second location different from the first location. The method further includes re-connecting the transported trolley system elements of the modular trolley system at the second location of the mine.